Komatsu D155 Bulldozer Track Idler Assembly Forged Tension Roller

Product Specification

Komatsu D155 Dozer Track Idler Assembly - Forged Tension Roller

Struggling with premature track idler failures on your Komatsu D155 dozer? Need a tension roller assembly that withstands heavy-duty earthmoving and mining demands? YinTai Parts, a trusted global supplier of excavator and dozer undercarriage components, introduces the Forged Track Idler Assembly for Komatsu D155—engineered to deliver unmatched durability, precision, and cost efficiency for your bulldozer fleet.

1. What is a Idler?

The "Tension Core" of Bulldozer Undercarriages
As a critical component of the track tensioning system, the idler assembly maintains proper track sag, guides track alignment, and absorbs impacts during operation. Our forged tension roller features a splined shaft-roller connection and heavy-duty steel construction, designed specifically for Komatsu D155 dozers. By optimizing bearing contact area and torque transmission, this assembly reduces wear by 45% compared to standard cast idlers, ensuring seamless integration with your dozer’s track chain, sprockets, and rollers.

2. Idler Characteristic

✅ 1. Forged Strength for Extreme Conditions

• Hot-Forged Alloy Steel Construction: 1,600-ton press forming creates a denser grain structure, improving impact resistance by 30%
• Rock-Resistant Guard Design: Thickened steel shields protect against debris intrusion in mining, quarry, and landfill applications
• IP68 Sealing System: Double-lip seals with grease chambers block dust/water, extending service life in harsh environments

✅ 2. Precision Tensioning Technology

• Adjustable Tension Mechanism: Fine-tune track sag without full disassembly, saving 50% maintenance time
• Self-Aligning Bearings: Reduce lateral stress on tracks, minimizing (track drift) and improving straight-line tracking accuracy
• Lubrication Optimization: Direct grease injection ports ensure consistent lubrication to high-wear interfaces

✅ 3. Extended Undercarriage Life

• 50% Reduced Bearing Stress: Patent-pending bearing design cuts load on rollers, extending component life to 8,000+ hours
• System Synchronization: Matches wear rates of Komatsu OEM track components for balanced undercarriage performance
• Cost Savings: Lowers annual maintenance costs by 40% via fewer replacements and downtime reductions

✅ 4. Safety-Enhanced Design

• Anti-Fatigue Fracture Resistance: Passed 1.8x rated load testing to eliminate sudden failure risks
• Reduced Maintenance Exposure: Long-life design minimizes operator contact with moving parts during servicing
• ISO Certified Quality: Meets or exceeds OEM standards for reliability and safety compliance

✅ 5. Dozer-Specific Performance

• Heavy-Duty Track Compatibility: Perfectly matched to Komatsu D155 track pitch (203.2mm) and gauge
• Thermal Stability: Maintains structural integrity under prolonged high-temperature operation (up to 120°C)
• Noise Reduction: Precision-machined surfaces reduce track vibration and operational noise by 15%

3. Design/Structure/Main Dimensions of Installation

4. Production Processes

5. Hot Sale Products

6. Our Advantages

• World-class quality

• Factory sale directly with reasonable price

• Flexible payment terms including T/T,L/C and so on

• Fast delivery within 30 days after contract established

• After-sale services: video technical support, 24h online support

Are you still plagued by the absence of a top-quality excavator idler? Look no further than YinTai Parts, a leading manufacturer and supplier of excavator idlers in China. We boast an array of high-quality products available for purchase. With over three decades of experience and extensive expertise in the field, we guarantee the superior quality and exceptional performance of our products, ensuring your satisfaction.